code: def test_chebyshev_u_precise():
      x, w = gauss_chebyshev_u(3, 40)
      assert [str(r) for r in x] == [
          "0.7071067811865475244008443621048490392848",
          "0",
          "-0.7071067811865475244008443621048490392848",
      ]
      assert [str(r) for r in w] == [
          "0.3926990816987241548078304229099378605246",
          "0.7853981633974483096156608458198757210493",
          "0.3926990816987241548078304229099378605246",
      ]
  
file_path: sympy/sympy/integrals/tests/test_quadrature.py
imports: from sympy.core import S, Rational
  from sympy.integrals.quadrature import gauss_legendre, gauss_laguerre, gauss_hermite, gauss_gen_laguerre, gauss_chebyshev_t, gauss_chebyshev_u, gauss_jacobi, gauss_lobatto
label_desc: Use image node_id 12 for calling a global function with example usage: test_chebyshev_u_precise() without return types